Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 1 | /* SH specific relocation handling. |
| 2 | Copyright (C) 2000, 2001, 2002, 2005 Red Hat, Inc. |
| 3 | This file is part of Red Hat elfutils. |
| 4 | Written by Ulrich Drepper <drepper@redhat.com>, 2000. |
| 5 | |
| 6 | Red Hat elfutils is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by the |
| 8 | Free Software Foundation; version 2 of the License. |
| 9 | |
| 10 | Red Hat elfutils is distributed in the hope that it will be useful, but |
| 11 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License along |
| 16 | with Red Hat elfutils; if not, write to the Free Software Foundation, |
| 17 | Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. |
| 18 | |
| 19 | Red Hat elfutils is an included package of the Open Invention Network. |
| 20 | An included package of the Open Invention Network is a package for which |
| 21 | Open Invention Network licensees cross-license their patents. No patent |
| 22 | license is granted, either expressly or impliedly, by designation as an |
| 23 | included package. Should you wish to participate in the Open Invention |
| 24 | Network licensing program, please visit www.openinventionnetwork.com |
| 25 | <http://www.openinventionnetwork.com>. */ |
| 26 | |
| 27 | #ifdef HAVE_CONFIG_H |
| 28 | # include <config.h> |
| 29 | #endif |
| 30 | |
| 31 | #include <elf.h> |
| 32 | #include <stddef.h> |
| 33 | |
| 34 | #define BACKEND sh_ |
| 35 | #include "libebl_CPU.h" |
| 36 | |
| 37 | |
| 38 | /* Return true if the symbol type is that referencing the GOT. */ |
| 39 | bool |
| 40 | sh_gotpc_reloc_check (Elf *elf __attribute__ ((unused)), int type) |
| 41 | { |
| 42 | return type == R_SH_GOTPC; |
| 43 | } |
| 44 | |
| 45 | /* Check for the simple reloc types. */ |
| 46 | Elf_Type |
| 47 | sh_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type) |
| 48 | { |
| 49 | switch (type) |
| 50 | { |
| 51 | case R_SH_DIR32: |
| 52 | return ELF_T_WORD; |
| 53 | default: |
| 54 | return ELF_T_NUM; |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | /* Check whether machine flags are valid. */ |
| 59 | bool |
| 60 | sh_machine_flag_check (GElf_Word flags) |
| 61 | { |
| 62 | switch (flags & EF_SH_MACH_MASK) |
| 63 | { |
| 64 | case EF_SH_UNKNOWN: |
| 65 | case EF_SH1: |
| 66 | case EF_SH2: |
| 67 | case EF_SH3: |
| 68 | case EF_SH_DSP: |
| 69 | case EF_SH3_DSP: |
| 70 | case EF_SH4AL_DSP: |
| 71 | case EF_SH3E: |
| 72 | case EF_SH4: |
| 73 | case EF_SH2E: |
| 74 | case EF_SH4A: |
| 75 | case EF_SH2A: |
| 76 | case EF_SH4_NOFPU: |
| 77 | case EF_SH4A_NOFPU: |
| 78 | case EF_SH4_NOMMU_NOFPU: |
| 79 | case EF_SH2A_NOFPU: |
| 80 | case EF_SH3_NOMMU: |
| 81 | case EF_SH2A_SH4_NOFPU: |
| 82 | case EF_SH2A_SH3_NOFPU: |
| 83 | case EF_SH2A_SH4: |
| 84 | case EF_SH2A_SH3E: |
| 85 | break; |
| 86 | default: |
| 87 | return false; |
| 88 | } |
| 89 | |
| 90 | return ((flags &~ (EF_SH_MACH_MASK)) == 0); |
| 91 | } |